A METHOD FOR ENHANCING RIDE AND SAFETY PROPERTIES OF VEHICLES DRIVEN BY IN-WHEEL MOTORS

Keywords

Abstract

In this paper, a method for reducing unspring mass and improving
ride property of vehicles driven by in-wheel motors will be provided.
To begin with, the advantages of vehicles armed with in-wheel
motors will be described, after which some drawbacks of this idea
will be studied. Then, for a better analysis, quarter car model will
be studied in frequency domain. Gain of body acceleration and
wheel dynamic load, which can be equal to ride property and safety
performance respectively, will be compared. Finally, an idea that
makes the drive motor suspend will be proposed for enhancing the
two properties and then a semi-active control theory will be studied.
Through the comparison in time domain and frequency domain, it
comes to a conclusion that vehicles driven by suspended motors not
only simpliﬁed the structures but also can be used as an absorber
for vibration reduction.